The links above are direct firmware file links so you can restore or update with option+click in iTunes.

The iOS 5 update includes iCloud, a completely overhauled notification system, Wi-Fi sync, Newsstand for reading magazines and newspapers, Twitter integration, a much improved Mail app, and the ability to setup and use your iPod Touch, iPad or iPhone without tethering it to iTunes on a desktop PC or Mac.

Mac OS X 10.7.2 is also set for a release today, with full support for iCloud, back to my mac and a new “remote wipe” and lock feature. Should your Mac get stolen, you will be able to login to iCloud.com, find your Mac on a live map, force it to display a message remotely, lock the computer or wipe the contents of the hard drive.

Apple has also included minor bugfixes for Time Machine, Mac App Store, Safari, Mail and other parts of the system in the 10.7.2 update.